Medical devices involved in the transport of blood can cause fatal problems of blood clot formation on the surface contacting the blood. Due to the nature of the blood, the problem cannot be solved with conventional hydrophilic or hydrophobic surfaces. An “omniphobic surface” is a material that can minimize the formation of blood clots on the surface because it repels all kinds of liquids regardless of the liquid properties. Our lab has succeeded in forming the omniphobic surface using a liquid re-entrant structure composed of nano-sized small holes repelling the upper liquid. Thereby, we are conducting research on biomedical materials that can be applied to blood-related medical devices such as ECMO.

-“Flexible and Stable Omniphobic Surfaces based on Biomimetic Repulsive Air-Spring Structures”, ACS Applied Materials & Interfaces (2019)